From: Measuring the positive psychological well-being of people with rheumatoid arthritis: a cross-sectional validation of the subjective vitality scale
Measures
Subjective Vitality
Mean
SD
r
Subjective vitality
4.05
1.57
Quality of life
.68
.24
.59
Physical function
.51
.48
.58
Global fatigue
26.0
11.79
-.70
Anxiety
6.78
4.24
-.53
Depression
4.82
3.48
-.73